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[Discuss-gnuradio] fft_filter_ccc adaption for different Bandwidths

From: bjoernm
Subject: [Discuss-gnuradio] fft_filter_ccc adaption for different Bandwidths
Date: Thu, 08 Sep 2011 15:59:09 +0200
User-agent: Internet Messaging Program (IMP) H3 (4.2)

Hi everyone...

I'm currently working on/with the UCLA ZigBee Physical Layer implementation on GnuRadio. Now my sender and receiver will change their bandwidth all the time, hence I need to adjust the BandPassFilter at reception accordingly.

Now I have seen that the signal goes through the C++ Signal Processing Block "fft_filter_ccc" which, as I assume, filters the signal as a Bandpass filter or low pass, not sure.

Anyway, I need to adjust the parameters/coefficients of "fft_filter_ccc" and was wondering if anyone of you knows which parameter of this signal processing block responsible is for the width of the filter?

best regards, and thank you all for answering...

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